Sheet-metal-slitting machine



A. J. TOWNSEND June 16, 1925;

2 Sheets-Sheet File d Jan- 15, 1925 I x gmenko z' I v flcffwizaew- June16, 1925.

1,542,424 A. J. TOWNSEND SHEET METAL SLITTING {MACHINE Fild Jan. 15,1923 2 Sheets-Sheet 2 way P I20 n 14c] filo/Z5024 UNITED STATES was June16, 1925.

ARTHUR J. TOWNSEND, OF CANTON, OHIO SHEEP-METAL-SLITTING- iucamnApplication filed January 15, 1923. Serial N'o. 612,785.

To all wlwm away mm Be it known that I, An'rrrun J. TOWN- SEND, acitizen of the United States, residing at Canton, in the county of Starkand State of Ohio, have invented new and useful Improvements inSheet-Metal-Slitting- Machines, of which the following is aspecification. a

The invention relates to' nachines for slitting sheet metal asapreliminary step for expanding the same, and especially to the rota typeof such machines; and the objects 0 the improvement are to rovide asimple form of stripper bar for t e slit- 1 ting rolls, and to supportthe same on both sides of the rolls for read removal and replacementeither indivi ually or collectivel in case of need.

, Wlib n stripper bars for slitting rolls are supported solel at therear side of the rolls and exten forward between the slitting disks ofthe roll, a special shape of bar must be used to ive it the cantileverstrength necessary r supporting its free end; and one object of thepresent improvement is to use straight strips of stock steel for thebars.

In the .use of stri per bars supported solely at the rear en s,difiiculty, is experienced in removing and replacing individual bars,and a sheet is also liable to be retarded or buckled by impinging theforward free ends of the bars; and a further object of the presentimprovement is to pro- 36 with transverse bearing bars for aligning Iand supporting the ends of the stripper vide a frame for each set ofstripper bars,

ars and a transverse clamping bar having tongues. thereon engagingnotches in the ends of the stripper bar.

' embodiment of the invention is illustrated in the accompanyingdrawings, forming part hereof, in which j Figure 1 1s a plan view of aframe containing a lower set of stripper bars, as on line 1-'1, Fig. 5,showing one clamp bar broken away to show the ends of stripper--Bba:rs-underneath the same;

.-,"Fig. 3, a detached perspective view of 'onle' stripper bar;

s as a clampin GZi rwFi {ind fewer frames containing sets of strip-.fFig. '2, 'a fragmentary perspective view offthe corner portion of aframe;

fragmentary sectionof one end bar;

5, a ongitudinal section of upper Similar numerals refer to similarparts throughout the drawings.

The frames 10 and 10 for the lower and upper sets of stripper bars 11are made exactl alike, except that one frame is inverte with respect tothe other. Each frame comprises longitudinal side bars 12 locatedadjacent to the ends of the rolls, and the ends of the side bars areconnected by transverse supporting bars .13, which may be and preferablyare formed integral with the side bars. The ends of the lower frame maybe supported upon transverse pedestals 14, and the ends of the upperframe may be suspended from the transverse beams 14', to which pedestalsand beams the frames may be secured by bolts 15.

The transverse supporting bars 13 are provided with a series oflongitudinal grooves 16 for neatly receiving the edge of the endportions of the stripper bars so as to space and stay the same in properposition, and the outer portion of the bar is off-set downward to form atransverse shoulder 17, at the ends of the stri per bars and a depressedshelf 18 in a p ane below the lower edge thereof, to provide a freeclearance for the transverse clamping bars 19, the ends of which arepreferably secured and stayed in recesses 20, provided in, the side bars12 by means of countersunk bolts 21.

The stripper bars 11 are made of straight strips of steel havingcorresponding corners on each end cut to form an L-notch 22 in which anL-flange 23 formed on the inner edge of each. clamping bar is adapted toclamp the stripper bars inplace.

The parts are so proportioned and arranged that the straight sides ofthe L- are spaced apart to form a way through which a sheet is guidedfor passing between the cutting disks 24 comprising slitting rolls 25,one stripper bar being located between the peripheral portions ofadjacent slitting disks of each roll, in well .known manner.

By this construction and arrangement, it is evident that the upperslitting roll, and the upper set of slitting bars can be removedaltogether with the upper frame, whereupon either one of the slittingbars can be removed from the frame by merely removing the clamping barsat the ends thereof.

I claim 1. A sheet metal slitting machine including slitting rolls withspaced cutting disks, stripping bars extending through between adjacentdisks, transverse supporting bars for the ends of the stripping bars infront and in rear of the rolls, and transverse clamping bars retainingthe ends of the stripper bars.

2. A sheet metal slitting machine including slitting rolls with spacedcutting disks, stripping bars extending through between adjacent disks,transverse supporting bars for the stripping bars in front and rear ofthe rolls, grooves in the supporting bars engaging the-edges of the endportions of the stripping bars, and transverse clamping bars retainingthe ends of the stripper bars.

3. A sheet metal slitting machine including slitting rolls with spacedcuttin disks, stripping bars extending through be adjacent disks,transverse supporting-bars for the ends of the stripping bars infrontand in rear of the rolls there being notches in the ends of the stripperbars and transverse clamping bars retaining the ends of the stripperbars having flanges entering in the notches.

4. A sheet metal slitting machine including slitting rolls with spacedcutting disks, stripping bars extending through between adjacent disks,transverse supporting bars for the ends of the stripping bars in frontand in rear of the rolls, and removable transverse clamping barsretaining the ends of the stripper bars.

5. A sheet metal slitting machine including slitting rolls with spacedcutting disks, straight stripping bars extending through betweenadjacent-disks, a supporting frame including longitudinal side bars andtransverse supporting bars for the ends of the strippin bars in frontand in rear of the rolls, and transverse clamping bars retaining theends of thestriper bars.

- ART l 3" J. TOWNSEND.

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